[특허]Instrumental error compensation circuit for flow meter

[미국특허] Instrumental error compensation circuit for flow meter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-001/12
출원번호	US-0505525 (1983-06-17)
우선권정보	JP-0105370 (1982-06-21)
발명자 / 주소	Kanayama Masahiro (c/o Oval Engineering Co. Ltd. 10-8 Kamiochiai 3-chome Shinjuku-ku Tokyo JPX)
인용정보	피인용 횟수 : 21 인용 특허 : 3

초록 ▼

An instrumental error compensation circuit for a flow meter is disclosed in which a flow rate calculated from an output signal of the flow meter is identified with respect to a plurality of predetermined sections of flow rates. Flow rate compensation coefficients are calculated by linear interpolation on the basis of actually measured data which are obtained in advance in accordance with instrumental errors of the flow meter. Actual flow rates of a fluid are measured with the instrumental errors of the flow meter compensated for by the calculated coefficients.

대표청구항 ▼

A circuit for compensating for an instrumental error of a flow meter which generates a pulse signal having a frequency proportional to a flow rate, said circuit comprising: pulse distributor means for generating two different pulse signals in response to the pulse signal output from the flow meter, said two pulse signals having a predetermined frequency ratio to each other; flow rate calculator means for calculating an instantaneous flow rate based on the frequency of the outer signal of the flow meter and generating an output signal indicative of said instantaneous flow rate; flow rate section identifier means for identifying, in response to the output signal of the flow rate calculator means, specific one of predetermined flow rate sections to which the calculated instantaneous flow rate belongs, and generating a signal indicative of the identified section; compensation constant memory means for storing in advance a plurality of compensation constants necessary for calculating an instrumental error of the flow meter for each of the sections, selecting specific one of the compensation constants in response to the output signal of the identifier means, and generating a signal indicative of said compensation constant; compensation constant calculate and write circuit means for calculating a compensation coefficient in response to the output signal of the compensation constant memory means by performing interpolation corresponding to a flow rate, and generating a signal indicative of the compensation coefficient; compensation amount calculator means for calculating an amount of compensation corresponding to the output signal of the compensation constant calculate and write circuit means in synchronism with one of the pulse signals output from the pulse distributor means, and generating a signal indicative of said amount of compensation, said compensation constant memory means, in response to an output of said flow rate section identifier means, producing a compensation value associated with the input, said compensation value being loaded into said compensation amount calculator means such that each time a pulse signal is delivered from said pulse distributing means to said compensation amount calculator means, said compensation amount calculator means calculates a compensation value based on the output data of said compensation constant memory means; adder means for adding up the output signals of the compensation amount calculator means, and every time the sum reaches a predetermined numerical value, generating an overflow pulse signal as a compensated flow rate pulse; output sync circuit means for sumchronizing the output pulse signal of the adder means to said other output signal of the pulse distributor means to generate a sync signal; a write circuit means for entering data in said flow rate section identifier means and data in said compensation constant memory means corresponding to outputs of said flow rate section identifier means; and temporary flow rate section means for temporarily storing said entered data such that said data is received by said compensation constant calculate and write circuit means via said temporary flow rate sections means, whereby said compensation constant calculate and write circuit means performs said calculations.

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

Liu Frederick F. (17812 Community St. Northridge CA 91324) Liu Arnold E. (17812 Community St. Northridge CA 91324), Apparatus and method for measuring fluid flow over a wide range of fluid flow conditions and viscosities.
상세보기
Honey Raymond W. (La Habra CA) Katz Louis (Anaheim CA), Flow rate computer.
상세보기
Fukui Jun (Machida JPX) Yano Takeshi (Tokyo JPX) Hasegawa Yutaka (Aichi JPX) Sakanaka Masaharu (Tokyo JPX), Liquid meter comprising a circuit for reducing a detection error resulting from a variable flow rate.
상세보기

이 특허를 인용한 특허 (21) 인용/피인용 타임라인 분석

Aid James D. (St. Petersburg FL) Din Shahid Q. (Clearwater FL) Hopping Andrew D. (Largo FL), Closed loop pump control system.
상세보기
Hobbs James W. (Sweeny TX), Constraint control for a compressor system.
상세보기
Miyamoto Yoshikazu (Tokyo) Toriyabe Kimio (Tokyo) Tsuge Kazuo (Kanagawa) Ikeda Hideaki (Kanagawa) Kojima Teruhisa (Kanagawa) Komaki Masayuki (Tokyo) Morita Yutaka (Hyogo) Murakami Takatoshi (Hyogo) S, Control apparatus for turbine-type flow meter.
상세보기
Vun Cannon, James A, Controller for monitoring fluid flow volume.
상세보기
Tootell Terence S. (Windsor CAX) Wilson Keith G. (Belle River MI CAX) Shoptaw David R. (Livonia MI), Electronic flowmeter system and method.
상세보기
Williams, Michael B., Flow meter module for a controller.
상세보기
Tokhtuev, Eugene; Schilling, Paul S., Fluid flow meter with normalized output.
상세보기
Shoptaw David R. (Livonia MI), High accuracy turbine flowmeter with optical sensor.
상세보기
Isobe Toshiaki (Nagoya JPX) Oba Hidehiro (Aichi JPX), Karman vortex sensor type flow rate measuring system.
상세보기
Forkert Maurice J. (Fort Wayne IN) Sullivan Mark E. (Fort Wayne IN), Linearized turbine flow meter for fuel dispensers.
상세보기
Kaehler David L. ; Sobota Richard R. ; Payne Edward A., Meter calibration and drift compensation device.
상세보기
Pearman Arthur N. J. (St Paul MN) Woessner Michael A. (Golden Valley MN), Method and apparatus for calibration of electronic gas meters.
상세보기
Strigard Bengt-Olof (MalmSEX) Andreasson Tord (Lund SEX), Method and apparatus for measuring the volume of a flowing liquid.
상세보기
Bergkvist Anders,SEX ; Bjurnemark Anders,SEX, Method and apparatus for volume determination.
상세보기
Kopl, Manfred; Harding, Alfons, Method and device for measuring the volumetric flow of a fluid.
상세보기
Kim, Youngjin; Lee, Hoyoun; Shin, Sungyong, Method for controlling water supply amount and refrigerator using the same.
상세보기
Wolff Donald L. (Barrington IL) McCauley Porter T. (Northfield IL) Stiefel Paul (Skokie IL) Takacs Gyoergy J. (Wheeling IL) Adams Roman A. (Lincolnshire IL), Method of calibrating and determining the rotational and fluid delivery velocities of a peristaltic fluid pump.
상세보기
Turk, Michael F., Remote flow rate measuring.
상세보기
Takemura, Kouichi; Watanabe, Aoi; Koba, Yasuo; Satou, Masato, Setting method of flow meter device and flow meter device.
상세보기
Gheorghe, Bogdan; Hawken, Philip C., System and method of providing water flow rate compensation.
상세보기
Wildberger John (Peterborough CAX), Totalizer apparatus for flow rate measurement devices.
상세보기

활용도 분석정보

상세보기

다운로드

내보내기

활용도 Top5 특허

해당 특허가 속한 카테고리에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

[미국특허] Instrumental error compensation circuit for flow meter 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (21) 인용/피인용 타임라인 분석

활용도 분석정보

활용도 Top5 특허

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

[미국특허] Instrumental error compensation circuit for flow meter 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (21) 인용/피인용 타임라인 분석

활용도 분석정보

활용도 Top5 특허 더보기

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

활용도 Top5 특허